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NetComposites > Questions > how to calculate fiber-matrix weight percentage from given density?

how to calculate fiber-matrix weight percentage from given density?

I would like to ask how to calculate the weight percentage of the reinforcement and
matrix for (a) glass fibre-reinforced epoxy composite and (b) carbon fibre-reinforced epoxy composites. Densities of glass fibre, carbon fibre, epoxy resin, and polyester resin are 2.54 g/cm^3, 1.8 g/cm^3, 1.2 g/cm^3, and 1.5 g/cm^3, respectively.